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(No Model.)' I 2 SheetsSheet 1. ZQL. GHA'DBO'URNEQ GAS RETORT L'ID. No. 393,617. Patented Nov. 27, 1888.

UNITED STATES PATENT Orricn.

ZEBULON L. OHADBOURNE, OF BROOKLYN, NEW' YORK, ASSIGNOR OF ONE- HALF TO VICTOR E. DOWNER, OF LYNDHURST, NE JERSEY, AND VICTOR GAS-RETO RT LID.

SPECIFICATION forming part of Letters Patent No. 393,617, dated November 27, 1888.

Application filed January 26,1888. Serial No. 262,000. (No model.)

To aZZ whom it may concern:

Be it known that I, ZEBULoN L. ClEfAD- BOURNE, a citizen of the United States, and a residentofBrooklyn, in the county ofKings and.

State of New York, have invented certain new and useful Improvements in Gas-Retort Lids; and I do hereby declare that the following is a full, clear, and exact description of the invention,which will enable others skilled in the art [0 to which it appertains to make and use the same, reference being had to the accompanying drawings,which form a part of this specification, and in which-- Figurcs 1, 2, 3, and -1- are perspective detail views of my improved gasretort lid detached. Fig. 5 is a perspective view of the same closed, and Fig. 6 is a vertical sectional view.

My invention relates to that class of gas-retort lids which can be secured to the ordinary 2o mouth-piece of the retort without making any change in the mouth-piece. In the manufacture of gas, owiugto the very great pressure of the gas in the retort as it is being generated and forced into the receiver and of its power to pass through small openings, it has been a difficult matter to make a lid which could be secured upon the retort without permitting the gas escape. Another trouble is caused by the tar which collects upon the lid and 0 month and prevents the parts being closed together after the retort has been opened to recharge the retort. Aside from the trouble of y the tar, the hinges of the lid will become worn with use, and thus cause a more or less open 5 joint between the lid and the mouth of the retort; and still another disadvantage arises from the liability of the locking mechanism becoming loosened unless it be a screw or other objectionable means.

My invention therefore has for its object to overcome these disadvantages and to produce a lid that will be effective and can be cheaply and quickly applied to the ordinary mouthpieces which are now in use; and it consists intheimprovedconstructionandcombinations of parts of the same, as will be hereinafter more particularly described, and pointed out in the claims.

Referring to the accompanying drawings, in

which the same letters of reference indicate corresponding parts in each of the figures, A indicates the ordinary mouth-piece having a flange, B, around its front end. Against the front end of the month-piece, and also against the flange, is secured a frame, 0, which is pro- 5 vided with perforated lugs D D,through which the bolts E E are passed to secure the frame in place. The opposite ends of these bolts engage with loose lugs or straps F F, which engage with the flange B upon the mouth-piece and clamp the frame securely in place by the bolts E E. The base or portion of these lugs which bears against the flange is preferably made wider than the portion which the bolts pass, thus giving a good wide bearing, and they are preferably made of such length that they will bear against the sides of the mouthpiece and prevent them from turning with the bolts. The joint between the frame and the mouth-piece is luted in the ordinary manner to prevent the escape of gas.

The outer face of the frame is provided with a groove or recess, G, semicircular in cross section, into which fits the rounded edge H of the lid I. when the lid is closed. By making the groove upon the face of the frame the tar which collects in the mouth of the retort during the generation of the gas, and which runs out of the retort when the lid is opened to empty and recharge the retort,will drop down So over the groove without running into it, and will thus not be in the way of the edge of the lid when itis closed, and by making the groove semicircular the lid can be used just as it comes from the mold without being dressed, except to cut off any small projection which may be upon it. The form of the groove and edge'of the lid will also make a very close joint to prevent the escape of any gas. Each end of this frame is provided with a lug,0ne of which, 0 J, is provided with two forwardly-projecting brackets, K K, and the other lug, L, is provided with only one bracket, M." The two brackets K Kact as hinges for the lid,and are each provided with a rectangular recess, N, 5 within which is adj ustably secured the bearing-blocks O 0. These blocks are preferably made square, so that they will [it the sides of the apertures or recesses N N in the brackets, but will not be as long as the apertures,so that the blocks may be moved in toward or out from the frame. The upper side of each of the blocks is provided with a flange, which is of the same size as the width of the bracket, to prevent the block from passing down through the aperture and to make a neat appearance upon the top. These blocks are moved back and forth in these apertures by means of the set-screws l P, one in each bracket, and may be secured in place by the other screws, Q Q. after they have been adjusted by the screws l l The lid is hinged to these two brackets by means of the pin or bar Rwhich passes down through the hinge-pieces S S upon theback of the lid. As the bearings for the pin become worn from constant use, the screws Q Q are loosened and the blocks forced in toward the frame by means of the screws P P, just far enough to compensate for the wear, or partly turned around, when they are again secured by the screws Q Q. In this way the joint at that end of the frame and lid can be made as tight as wauted,and when the blocks have become so much worn as to be useless they can be removed and replaced with new ones without the expense of having to get an entire new lid,as must be done where there are no means of compensating for the wear, and with only a small block to replace makes it very cheap. Upon the other bracket, M, is pivotally se' cured a cam-lever, T, which, when the door or lid of the retort is closed, bears against a latch, U, which is pivoted to the lid and project-s beyond the edge of the lid. The handle part of the lever is provided with a longitudinal hole, V, into the outer end of which is placed a bar, \V, to enable the operator to turn the cam, as the lever itself is made short. After the lever has been swung around toward the lid, which causes the cam to press upon the latch and force the edge of the lid into the groove in the face of the frame, the bar \V is pushed through the hole in the handle of the lever T until its opposite end projects from the inner end of the lever sufficiently to bear against the end of the latch if the cam should turn and swing the outer end of the lever T away from the lid. The lever is preferably made round with a portion of its side cut away where the bolt X passes through to secure it to the bracket M, and the aperture through the handle is also preferably made round, although both or either of them may be of any other suitable shape. To give a better bearing for the cam against the edge of the lid through the latch, or, rather, to prevent the latch from springing and letting the cam turn without forcing the lid into place. the edge of the lid at that point is provided with alug or projection, Y, the outer surface of which is flat and out nearly if not quite even with the front of the lid, which is made of the ordinary shape.

The inner end of the latch U is secured under a keeper, Z, which is open at the bottom, which will permitof the outer end being raised high as desired to pass over the lcver,while that end of the latch is prevented from falling down by the inner end of it engaging with the upper end of the slot.

Having thus described my invention, I claim' 1. The combination, with a frame having a lug upon one end, of two brackets upon the lug, the outer ends of which are provided with rectangular apertures, a bearing-block in each of the apertures,apin through the blocks, and a lid hinged upon the pin.

2. The combination, with a frame having a lug upon one end, of two brackets upon the lug, the outer ends of which are each provided with a rectangular aperture, bearing-blocks within the apertures, a pin through the blocks, and a lid hinged upon the pin.

3. The combination, with aframc having a lug upon one end, of two brackets upon the lug, the outer ends of which are each provided with a rectangular aperture, bearing-blocks within the apertures, set'screws for moving the blocks within the apertures, apin through the blocks, and a lid hinged upon the pin.

l. The combination, with a frame having a lug upon one end, of two brackets upon the lug, the outer ends of which are each provided with an aperture, bearing-blocks within the apertures, the upper end of each of which is provided with a flange, a set-screw for securing each block in its aperture, a pin through the blocks, and a lid hinged upon the pin.

5. The combination, with a frame having a bracket at one end, a cam upon the outer end of the bracket, a lid hinged upon the opposite end of the frame, a latch upon the lid, and a keeper at the inner end of the latch.

(j. The combination, with a frame having a bracket upon one end, a cam-lever upon the bracket, a lid hinged upon the opposite end of the frame, a latch upon the lid, said lid being provided at the point at which the latch is pivoted with a lug or projection, the outer face of which is flat and nearly even with the outer portion of the lid.

In testimony that I claim the foregoing my own I have hereunto affixed my signature in presence of two witnesses.

ZEBULON L. OI'IADBOURNE.

\Vitnesses:

W. S. BOYD, BENNETT S. JONES.

IIO 

